Herwig++
2.7.0
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FFMassiveKinematics implements massive splittings off a final-final dipole. More...
#include <FFMassiveKinematics.h>
Public Member Functions | |
virtual pair< double, double > | kappaSupport (const DipoleSplittingInfo &dIndex) const |
Return the boundaries in between the evolution variable random number is to be sampled; the lower cuoff is assumed to correspond to the infrared cutoff. | |
virtual pair< double, double > | xiSupport (const DipoleSplittingInfo &dIndex) const |
Return the boundaries in between the momentum fraction random number is to be sampled. | |
virtual pair< double, double > | zBoundaries (Energy, const DipoleSplittingInfo &, const DipoleSplittingKernel &) const |
Return the boundaries on the momentum fraction. | |
virtual Energy | dipoleScale (const Lorentz5Momentum &pEmitter, const Lorentz5Momentum &pSpectator) const |
Return the dipole scale associated to the given pair of emitter and spectator. | |
virtual Energy | ptMax (Energy dScale, double emX, double specX, const DipoleIndex &ind, const DipoleSplittingKernel &split) const |
Return the maximum pt for the given dipole scale. | |
virtual Energy | QMax (Energy dScale, double emX, double specX, const DipoleIndex &dIndex, const DipoleSplittingKernel &split) const |
Return the maximum virtuality for the given dipole scale. | |
virtual Energy | PtFromQ (Energy scale, const DipoleSplittingInfo &) const |
Return the pt given a virtuality. | |
virtual Energy | QFromPt (Energy scale, const DipoleSplittingInfo &) const |
Return the virtuality given a pt. | |
virtual double | ptToRandom (Energy pt, Energy dScale, double emX, double specX, const DipoleIndex &dIndex, const DipoleSplittingKernel &split) const |
Return the random number associated to the given pt. | |
virtual bool | generateSplitting (double kappa, double xi, double phi, DipoleSplittingInfo &dIndex, const DipoleSplittingKernel &split) |
Generate splitting variables given three random numbers and the momentum fractions of the emitter and spectator. | |
virtual void | generateKinematics (const Lorentz5Momentum &pEmitter, const Lorentz5Momentum &pSpectator, const DipoleSplittingInfo &dInfo) |
Generate the full kinematics given emitter and spectator momentum and a previously completeted DipoleSplittingInfo object. | |
template<class T > | |
double | rootOfKallen (T a, T b, T c) const |
Triangular / Kallen function. | |
ThreeVector< double > | rotateToZ (Lorentz5Momentum &pTarget, Lorentz5Momentum &p1) |
Perform a rotation on both momenta such that the first one will point along the (positive) z axis. | |
Standard constructors and destructors. | |
FFMassiveKinematics () | |
The default constructor. | |
virtual | ~FFMassiveKinematics () |
The destructor. | |
Functions used by the persistent I/O system. | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. | |
Static Public Member Functions | |
static void | Init () |
The standard Init function used to initialize the interfaces. | |
Protected Member Functions | |
Clone Methods. | |
virtual IBPtr | clone () const |
Make a simple clone of this object. | |
virtual IBPtr | fullclone () const |
Make a clone of this object, possibly modifying the cloned object to make it sane. | |
Private Member Functions | |
FFMassiveKinematics & | operator= (const FFMassiveKinematics &) |
The assignment operator is private and must never be called. | |
Static Private Attributes | |
static ClassDescription < FFMassiveKinematics > | initFFMassiveKinematics |
The static object used to initialize the description of this class. |
FFMassiveKinematics implements massive splittings off a final-final dipole.
Definition at line 29 of file FFMassiveKinematics.h.
virtual IBPtr Herwig::FFMassiveKinematics::clone | ( | ) | const [protected, virtual] |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
virtual Energy Herwig::FFMassiveKinematics::dipoleScale | ( | const Lorentz5Momentum & | pEmitter, |
const Lorentz5Momentum & | pSpectator | ||
) | const [virtual] |
Return the dipole scale associated to the given pair of emitter and spectator.
This should be the invariant mass or absolute value final/final or initial/initial and the absolute value of the momentum transfer for intial/final or final/initial dipoles.
Reimplemented from Herwig::DipoleSplittingKinematics.
virtual IBPtr Herwig::FFMassiveKinematics::fullclone | ( | ) | const [protected, virtual] |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
virtual bool Herwig::FFMassiveKinematics::generateSplitting | ( | double | kappa, |
double | xi, | ||
double | phi, | ||
DipoleSplittingInfo & | dIndex, | ||
const DipoleSplittingKernel & | split | ||
) | [virtual] |
Generate splitting variables given three random numbers and the momentum fractions of the emitter and spectator.
Return true on success.
Implements Herwig::DipoleSplittingKinematics.
static void Herwig::FFMassiveKinematics::Init | ( | ) | [static] |
The standard Init function used to initialize the interfaces.
Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.
Reimplemented from Herwig::DipoleSplittingKinematics.
FFMassiveKinematics& Herwig::FFMassiveKinematics::operator= | ( | const FFMassiveKinematics & | ) | [private] |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::FFMassiveKinematics::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
) |
Function used to read in object persistently.
is | the persistent input stream read from. |
version | the version number of the object when written. |
Reimplemented from Herwig::DipoleSplittingKinematics.
void Herwig::FFMassiveKinematics::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Reimplemented from Herwig::DipoleSplittingKinematics.
ThreeVector<double> Herwig::FFMassiveKinematics::rotateToZ | ( | Lorentz5Momentum & | pTarget, |
Lorentz5Momentum & | p1 | ||
) | [inline] |
Perform a rotation on both momenta such that the first one will point along the (positive) z axis.
Rotate back to the original reference frame by applying rotateUz(returnedVector) to each momentum.
Definition at line 148 of file FFMassiveKinematics.h.
References sqr(), sqrt(), ThePEG::ThreeVector< Value >::unit(), ThePEG::ThreeVector< Value >::x(), ThePEG::ThreeVector< Value >::y(), and ThePEG::ThreeVector< Value >::z().
ClassDescription<FFMassiveKinematics> Herwig::FFMassiveKinematics::initFFMassiveKinematics [static, private] |
The static object used to initialize the description of this class.
Indicates that this is a concrete class with persistent data.
Definition at line 214 of file FFMassiveKinematics.h.